baber/WOPTO huggingface dataset:
Patent GB-648555-A (GB)
Title: Improvements in and relating to click mechanisms
IPC: G04B11/04
Filed: 1948-09-10
Abstract: 648,555. Locking rotary elements. PHILIPS ELECTRICAL, Ltd. Sept. 10, 1948, No. 23822. Convention date, Sept. 13, 1947. '[Class 80(iv)] A ratchet wheel 1 with teeth 2 is adapted to be positively held against rotation in one, direction by a detent pawl 7 which is pivoted about a pin 8 and carries a roller- 4 engaging between it and the teeth 2. The roller 4 on movement of the pawl 7 to engage or disengage has a rolling action on both the tooth surface and a surface 6 of the pawl 7 and is retained in position on the pawl by a spring 9. In a modification both sides of the teeth 2 are square so that a positive locking in both directions is obtained.
Patent GB-638138-A (GB)
Title: Improvements in or relating to electromagnetic detector devices for use in measuringapparatus
IPC: G01B7/34
Filed: 1946-08-12
Abstract: 638,138. Electric indicating systems. KAPELLA, Ltd., and REASON, R. E. Aug. 12, 1946, No. 23861. [Class 40 (i)] In a device for the electrical measurement of small movements, a coil whose magnetic circuit is varied to produce changes in inductance in accordance with the movements to be measured, forms part of a double bridge circuit supplied from a comparatively high-frequency source, to the frequency of which the coil is tuned at some position of the movable part within or near to the operative range. As shown, the tuned coil A of the sensitive device is common to the halves of the bridge, which are balanced respectively at or just beyond the opposite extremes of the range of movement of the sensitive device. The sensitivity of the system may be adjustable by ganged controls which simultaneously alter the balance points of the bridgehalves and the gain of the associated amplifier. The output may be used to operate a pen recorder. Construction of pick-up instrument.-The pick-up coil consists of a winding Q surrounding a core whose centre limb P<SP>1</SP> projects towards a movable plunger B<SP>1</SP> attached to a pivoted lever B<SP>2</SP> which carries a stylus at its other end, the whole being contained in a magnetic pot O and spring-pressed lid P.
Patent GB-1604308-A (GB)
Title: Process for the production of semiconductor bodies
IPC: H01L21/329
Filed: 1978-05-30
Abstract: In a method of producing semiconductor bodies by dividing up a large-area semiconductor starting wafer (1) containing at least one p-n junction (S1) and having a contact metal coating (12,14; 22,23,24) on each side of the starting wafer, in order to utilise the area of the starting wafer as well as possible and to ensure a uniform edge chamfering of the semiconductor body trench-like depressions (5) are provided on one side of the starting wafer, which are closed upon themselves and are determined in each case by the shape of the semiconductor body and which extend through the p-n junction of the starting wafer and expose the junctions. The depressions (5), which form a pattern, are filled with an insulating and stabilising substance (7) at least in the region of the emergence of the p-n junction (S1) at the surface. For the further processing of the semiconductor bodies envisaged, the starting wafer is provided with at least one metallic coating (12,14; 22,23,24) in each case on both sides in accordance with the predetermined area segments and then the starting wafer is separated, starting from the side not provided with depressions, in accordance with the existing pattern between adjacent depressions. <IMAGE>
Patent GB-418535-A (GB)
Title: Improvements in or relating to the manufacture of padding or stuffing for upholstery
IPC: B68G11/02
Filed: 1933-08-29
Abstract: 418,535. Wadding. BOYES, A. S., CROISDALE, H. R., and BOYES, H., Hough End Mills, Bramley, Leeds. Aug. 29, 1933, No. 23900. [Class 142 (iv).] A strip of fibrous material with one face 2 coated with adhesive is folded inwards one or more times from its edges towards the centre and finally folded down the centre.
Patent GB-1122889-A (GB)
Title: Process for oxidizing mercaptans
IPC: C07B45/06
Filed: 1967-05-23
Abstract: Mercaptans contained in petroleum fractions are oxidized to disulphides by oxygen or a gas containing oxygen in the presence of a catalyst composition containing a sulphur dye and a metal or metal compound.  Metal compounds which may be used include salts, hydroxides, oxides, sulphides and chelates of such metals as cobalt, iron, nickel, copper, lead, tin, bismuth, antimony, silver, gold, chromium, manganese, mercury, and vanadium.  The catalyst may be prepared by simply mixing the two components or by using a solvent, suitably an aqueous alkaline solution.ALSO:A process for the oxidation of mercaptans to disulphides comprises subjecting a mercaptan to oxidation by oxygen or a gas containing oxygen, e.g. air, in the presence of a catalyst composition comprising a sulphur dye and a metal or metal compound.  Mercaptans which may be oxidized are aliphatic, aromatic or heterocyclic in nature and may be contained in petroleum fractions.  Metal compounds which may be used include salts, hydroxides, oxides, sulphides, and chelates of metals such as cobalt, iron, nickel, copper, lead, tin, bismuth, antimony, silver, gold, chromium, manganese, mercury and vanadium.  Sulphur dyes which may be used include those formed from the reaction of amines, phenols, nitro compounds, heterocyclic compounds with sulphur, sulphides, thiosulphates and sulphur chloride. The catalyst composition may be prepared by simply mixing the two components or by dissolving them in solvents, suitably aqueous alkaline or acid solutions.ALSO:Catalyst compositions comprise a sulphur dye and a metal or metal compound and may be prepared by mixing the components alone or in solution, e.g. in H2SO4 or aq. alkali or by dissolving the sulphur dye in aqueous solutions of sodium sulphide or sodium hydrosulphite or in water alone and adding an aqueous solution of a metal compound followed by the addition of sodium hydroxide solution. Metals which may be used include cobalt, iron, nickel, copper, lead, tin, bismuth, antimony, silver, gold, chromium, manganese, mercury, and vanadium; classes of compounds which may be used include salts, hydroxides, oxides, sulphides and chelate compounds.
Patent GB-743402-A (GB)
Title: Improvements in and relating to television
Inventor: SPOONER ARTHUR MICHAEL
IPC: H04N5/272
Filed: 1950-09-29
Abstract: 743,402. Television. BRITISH BROADCASTING CORPORATION. Oct. 1, 1951 [Sept. 29, 1950], No. 23949/50. Class 40 (3). In a method of producing a composite tele. vision signal whereby, at a receiver, a picture is reproduced in which part of a background image provided by a first -television camera is replaced by a further image provided by a second television camera, control pulses are generated for rendering the two cameras alternately operative by means of a photo-electric cell viewing an unmodulated light raster through a mask having a profile of the same shape as a silhouette of the further image. In the Figure, two television cameras 1, 2 are connected respectively to camera control units 3, 4 and the outputs of the two cameras are fed through black level clamps 6 and 7 to an electronic switch 8 which may be of any suitable form, for example as described in Specification 743,403, and operates to suppress the outputs of the cameras alternately. A waveform generator 9 feeding the camera control units also provides suppression, synchronizing and scanning signals which are applied through a mixer 10 to the control unit 11 of a short afterglow cathode-ray tube 12 so as to produce an unmodulated raster in synchronism with those in the cameras. A mask 13 is placed between the screen of the tube and a photo-electric cell 15 the output from which passes through a black-line clamp 16, equalizer 17 and amplifies clipper 18 to control the electronic switch 8. A clamp pulse generator '19 controls the clamps 6, 7 and 16. Assuming for example it is desired to insert an actor televised by camera 1 within the window of a house a photograph of which is televised by camera 2, the output of camera 2 is applied initially to modulate the raster of tube 12 and transparent material for forming mask 13 is placed over the screen and blackened over the area corresponding to the window. The arrangement is then restored to normal and during scanning the light to cell 15 is interrupted as the spot passes the blackened area, the resulting cell pulses controlling switch 8 to suppress the output from camera 2 and render camera 1 effective whereby the combined signal represents the actor within the window of the house. The black levels of the two camera outputs are equalized by adjusting the bias voltages of clamps 6 and 7. In an alternative arrangement the cameras may be rendered alternately operative by applying the control pulses to suppress the electron beams in the cameras. Specification 489,717 also is referred to.
Patent GB-631948-A (GB)
Title: Improvements in and relating to mechanisms for limiting the feed motion in a lathe or other machine tool
IPC: B23Q16/00
Filed: 1946-08-13
Abstract: 631,948. Lathe &c. details. SKODA WORKS, PLZEN. Aug. 13, 1946, No. 23967. Convention date, Feb. 23. Addition to 631,947. [Class 83 (iii)] The invention of the parent Specification is modified in that the stops 32, Fig. 1, on the stop drum and the recesses 42 in the auxiliary control drum are provided on disc members 31, 41 respectively, Fig. 2, provided with means for securing the discs against rotation after adjustment. The discs are held between end washers 34, 35, with spacing members 36 and are clamped in adjusted position by nuts 33, 43. Additional clamping may be effected by socket-head bolts 38 passing through the spacing members which are tightened through a hole 39 in the housing disclosed when the vernier ring 37 is removed.
Patent GB-615827-A (GB)
Title: Improvements in lamp-holders combined with suspension tubes
IPC: H01R33/22
Filed: 1946-08-13
Abstract: 615,827. Lamp-holders. PHILIPS LAMPS, Ltd. Aug. 13, 1946, No. 24002. Convention date, Nov. 5, 1942. [Class 38 (i)] In a lamp-holder wherein a part 2 is carried by a suspension tube 5, a shield 10 of heat resisting, insulating material is supported between ridges 11, 12 on the holder 3 and extends into the tube 5 so as to separate the conducting wires 6, 7 and thus obviate the possibility of short circuits.
Patent GB-929991-A (GB)
Title: Improvements in or relating to methane detectors
Inventor: ROUND CHARLES
IPC: G01N21/72
Filed: 1958-07-25
Abstract: 929,991. Lamps for methane detection. COAL INDUSTRY (PATENTS) Ltd. Oct. 23, 1959 [July 25, 1958], No. 24033/58. Class 75 (4). A methane detector of the flame safety lamp type is provided with a tube through which a gas sample can be passed to the flame of the lamp, the tube being bifurcated, the two parts communicating at opposite points with an  interior space in the lamp. The tube may be of considerable length and may be bent and/or flexible and/or telescopic wholly or in part. In the form shown, the lamp comprises a reservoir 1 surmounted by inner and outer jackets 2, 3, closed by diaphragms 4, 5. The interior of the jacket 2 communicates with the space between the jackets by a gauze 11. Conduits 6 extend from the diaphragm 4 to the diaphragm 5 on which is mounted a frusto-conical cap 7 having an opening 9 at the top. A bifurcated tube 10 is connected by arms 10a, 10b with the lower part of the space between the jackets. In a modiacation, the arms 10a, 10b communicate with the interior of the jacket 2, which has two gauzes arranged transversely and a chimney which communicates directly with the exterior. The flame is surrounded by a bowl-like member extending across the inner jacket above the inlets of the arms 10a, 10b.
Patent GB-360956-A (GB)
Title: Improvements in and relating to regenerative coke ovens
IPC: C10B5/12
Filed: 1930-08-11
Abstract: 360,956. Coke ovens. POLLAK, J. E., 20, Holborn, London.-(Hinselmann Koksofenbauges ; 30, Zwiegertstrasse, Essen, Germany.) Aug. 11, 1930, No. 24063. [Classes 51 (i) and 51 (ii).] Regenerators.-In a coke oven having transverse regenerators, alternate regenerators f<2>, which are of an auxiliary nature are formed within hollow walls separating the main regenerators f, these walls being built up of stretcher bricks a<1>, Fig 5, and header bricks a<2>, the latter extending across the space within the wall and forming vertical partitions dividing it into a number of compartments. Pairs of con nected upflow and downflow flues h alternate along the length of the heating-wall, and each pair is connected to one of the compartments of the regenerator f<2>, so that inflow and outflow compartments alternate along the length of the regenerator, and to one or other of the two adjacent main regenerators f. When operating with rich gas supplied through conduits e air is supplied to all the inflow regenerators through base passages n<1>, n<2> beneath the main regenerators, and one of the two passages n beneath the auxiliary regenerators, the other serving for outflow of the waste gases. The connections are preferably such that upflow flues on one side of an oven correspond in position with downflow flues on the other side. Lean gas, when used, is preheated in the regenerators f<2>. The passages n<1> n<2> beneath the main regenerators are connected respectively to one half of the length of the corresponding regenerator through parts o<1>, o<2> and passages m, and each of the ports o<1>, o<2> is controlled by a damper block l having a coned projection fitting in a correspondingly formed seating in the brickwork, and forming a pivot about which the block can be turned. The blocks can be adjusted through openings r, p. Similar blocks are used for controlling the supply of air or gas to the regenerators f<2>. The end portions of the main regenerators corresponding with one or a small 'number of heating-flues are divided off from the remainder by partitions g, and a larger quantity of gas is supplied to the end flues to compensate for the increased cooling at the ends of the ovens. As shown in Fig. 5 the walls partitioning the regenerators f<2> are of two brick thickness, and each brick is jointed to a brick a<3> in the side wall having a portion s<2> projecting into the regenerator space. The rich gas passages e are formed in the cross bricks a<2>, and the minimize leakage, plates p<1>, p2, which break joint with the bricks, are fitted as shown. The heating-walls are built up of stretcher and header bricks which fit together with zig-zag joints.
Patent GB-851368-A (GB)
Title: Improvements in and relating to electro-acoustical transducers
IPC: H04R19/00
Filed: 1957-07-30
Abstract: 851,368. Electrostatic transducers. PHILCO CORPORATION. July 30, 1957 [July 30' 1956], No. 24128/57. Class 40 (4). An electrostatic loud-speaker comprises a perforated part-cylindrical backing-plate 12 secured between end plates 14 which carry means to secure and tension a membrane 11 round the convex surface of the backing-plate, the junctions between - the backing-plate and end-plates being separated by insulating-strips. The backing-plate has perforations of a diameter greater than the plate thickness and of a total area of about 30% of the plate area. The curved ends of the plate are each lapped by an insulating strip 18, the elbow of which fits into a groove running round the flanged periphery of its end-plate. The endplates are connected by rods 16, a cross-brace 50, and rounded sheet-metal corner members 45 keyed and bolted to the end-plates. The ends 48 of the backing-plate are bent inwardly to avoid fouling the membrane which is wrapped round the backing-plate and corner members and clamped between channel-sectioned bars 35, 36, spanning the end-plates. Vertical ribs on the convex surface of the backing-plate form shallow cavities-between the plate and membrane which comprises an inner layer of polyester film, such as sold under the Registered Trade Mark " Mylar," and an outer metallic layer protected by a coating such as varnish. The clamping members each have a series of holes plugged with a solvent based metal paint which, when the membrane is clamped between the bars dissolves the varnish or plastic film to make electrical contact with the metal layer. Terminals may therefore be mounted on the backing-plate and an end-plate. Tension-bars 42, the ends of which run in slots in the endplates, bear against the membrane between the clamping-bars 35, 36, and the corner members 45. Adjustable springs 43 draw the bars 42 inwards to stress the membrane. Unwanted vibrations of the membrane between the corner members 45 and the backing-plate are prevented by padding strips 53. Strips of tar paper overlie the membrane between the corner members and the clamping-bars. The loud-speaker may be mounted in a cabinet with its concave surfacefacing a cloth covered aperture and such as to embrace a moving-coil loud-speaker mounted in the same aperture.
Patent GB-711019-A (GB)
Title: Collapsible trailer
IPC: B60P3/34
Filed: 1952-09-26
Abstract: 711,019. Collapsible caravans. STAATS, J. D. Sept. 26, 1952 [Oct. 2, 1951], No. 24168/52. Class 108(1). A collapsible caravan, Figs. 1, 2, comprises a body portion having sides 1, hinged end walls 3, 4, and an overall cover 2 hinged to the wall 4, the cover 2, wall 4 and the base of the body being locked together by long bolts 10 to lie in the same plane when the caravan is expanded. A canvas or plastic &c. tent cloth 14 provided with a flap door (not shown) may be supported by hoops 6, 7 and 8 as shown. The hoop 8 is adapted to stretch the cloth by positioning a button on the hoop, Fig. 4, between any two of the teeth of a rack 9, or the hoop may be pressed against the cloth by a spring 22, Fig. 5, housed in a cylinder 21 hinged on a lug 9a to the cover 2. Supports 5 may be rigid with, or hinged to lie flat upon, the cover 2 in the caravan collapsed position. The tent cloth with mattresses &c. is stowed between the sides 1 on top of drawers and cupboards, which drawers are readily accessible from the outside by hinging the wall 3 downwardly.
Patent GB-1069221-A (GB)
Title: Oil additives and compositions containing them
IPC: C07F9/24
Filed: 1965-06-08
Abstract: Lubricant (including grease), hydraulic fluid, or fuel compositions comprise the following ingredients: (a) an oil, (b) a nitrogen-containing polymeric detergent, (c) a compound of the general formula <FORM:1069221/C4-C5/1> where a + b = 3, a is 0, 1 or 2, b is 1, 2 or 3, R is alkyl, R1 is H or alkyl, X is O or S, and Q is aryl, and (d) a compound of the general formula <FORM:1069221/C4-C5/2> where n is 0, 1 or 2, R11 is alkyl, Y is -OH or <FORM:1069221/C4-C5/3> R1 is as above, Z is O, S or a methylene group, and Q is aryl.  Typical ingredients are: (a) natural hydrocarbon oils, polyolefines, di-(2-ethylhexyl) sebacate, mono- and di-pentaerythritol esters of mixed C3-8 fatty acids, or a polyalkyl silicone; (b) N-dimethyl-aminopropyl polybutenyl succinimide, the tetraethylene pentamine di-imide of mono-(polypropylene) succinic acid, and copolymers of vinyl pyridines, vinyl pyrrolidones and amino-alkyl acrylates with copolymerizable monomers, usually alkyl acrylates and methacrylates; (c) bis-(nonylphenyl) phosphoramide, and N-methyl bis-(octylphenyl) thionophosphoramide; and (d) bis - (N,N - dimethylaminophenyl) methane, 1,1 - bis - (3,5 - diisopropyl - 4 - hydroxyphenyl) methane, and bis-(N,N-dioctyl-aminophenyl) ether and thioether.  The following optional additives are also mentioned: phenyl-alpha-naphthylamine, P2S5-terpene reaction products, sulphurized sperm oil, sulphurized oleic acid, silicone anti-foaming agents, polyacrylate V.I. improvers, acidless tallow and oleic acid.ALSO:Alkyl phenyl phosphoramides having one of the general formula <FORM:1069221/C2/1> <FORM:1069221/C2/2> wherein R is alkyl, are prepared by reacting the corresponding phosphorochloridate with ammonia. The preparation of bis (nonyl phenyl) phosphoramide is described in detail.  Bis (N,N-dialkyl aminophenyl) methanes are prepared by reacting an N,N-dialkylaniline in acid medium with formaldehyde.  The preparation of bis (N,N - dimethylaminophenyl methane is described and several other similar amines are specified.
Patent GB-1477361-A (GB)
Title: Semiconductor devices
IPC: H01L29/06
Filed: 1974-05-31
Abstract: 1477361 Image pick-up devices RAYTHEON CO 31 May 1974 [1 June 1973] 24297/74 Heading H1K A semiconductor device for use in an image pickup tube comprises a semiconductor body 32 and a resistive layer 42 sandwiching an array of thin insulating layers 40, and a grid of thick insulating layers 44 with trapped charges which prevent the formation of conduction channels between semiconductor regions underlying the thin insulating layers 40. The body 32 may be a Si wafer having a N<SP>+</SP> surface region 34 and an oxide layer 36 initially formed on opposite faces. Apertures 38 are formed in the retained oxide layer 36, as shown, and thin silicon oxide layers 40 are grown in the apertures 38. The resistive layer 42 may be GaAs. The thick insulating layers 44 are ion implanted with B, P or alkali atoms, preferably Cs to provide the trapped charges.
Patent GB-518272-A (GB)
Title: Improvements in or relating to power operated machines and guarding devices therefor
IPC: A43D35/00
Filed: 1938-08-18
Abstract: 518,272. Sole-moulding machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., RIVINGTON, A. A., and MINETT, W. T. Aug. 18, 1938, No. 24312. [Class 17 (i)] [Also in Group XXIV] Shoe-sole moulding-machines of the kind described in Specifications 161,668 and 215,443, [both in Class 17 (i)], are provided with a guard, which starts the machine when moved into operative position, and consists of a frame 26, Fig. 1, sliding in guides and enclosing a transparent sheet or provided with cross-wires. When the guard, which is supported by weighted levers 28, is pulled down by means of a handle 42, in order to prevent access to the moulds 10, 12 a pawl 44 mounted on it acts through a lever 46 to trip into active position one of the sole-clamping levers 16 described in Specification 215,443, [Class 17 (i)], which is normally held in raised position by engagement of an arm 58 thereon with a latching-lever 54. A hook 60 on the guard then acts through a lever 18 to start the machine. The lever 18 acts through a link 69, lever 70, and pawl 72 to push to the right a floating lever 66, so that its hooked righthand end falls off a cam-projection 67 on the crank-shaft 17 of the machine. The lever 66 acts through a link 68 to cause closing of the driving-clutch. After a half-revolution, the lever 66 is raised again by a second cam-projection on the shaft 17, and the clutch is disengaged. The guard 26 is latched down by a pawl 76, which is tripped, to allow the guard to rise again, by a member carried by the lower mould 12 during its rise towards the fixed upper mould 10. By adjustment of a p:voted stop 86, the guard may be permitted to rise higher, to allow of removal of the moulds. To prevent immediate re-engagement of the clutch in the event of the machine overrunning, the lever 66 is provided with a pivoted catch 97 which engages a pin on a lever 92 should the lever 66 be lifted too high by the cam-projection 67, and be in danger of falling off and re-engaging the clutch. A handled bar 99 enables the catch 97 to be disengaged from the lever 92, so that the lever 66 may fall and re-start the machine. Such restarting is prevented, when the guard is in raised position, by a member connected to the starting- lever 18. In an arrangement suitable for the machine described in Specification 161,668, [Class 17 (i)], the guard 120, Fig. 3, is carried by parallel links 122, 124, and is pulled down against the action of a spring 130. A trip-rod 132, connected to one of the links, has at its lower end an L-shaped slot in engagement with a pin on a bell-crank lever 134, which acts through a push-bar 140 to start the machine when the guard is lowered. The guard is locked down by a lever 146, a notch in which engages a pin on the lever 134. The descent of the lower mould rocks the lever 146 and releases the lever 134, whereupon the guard is raised by the spring 130. Specification 463,613, [Group XXIV], also is referred to.